36"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 17.75"h] w14h14 + Product Details Size –

+ Product Details Size – 22"w X 29"h is the size for the duct opening measurement only

High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

Actual Filter Size – 23 3/4"w x 11 3/4" x 1"

+ Product Details Size - 10" X 10" is the size for the duct opening measurement only

36"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 17.75"h] w14h14 + Product Details Size –+ Product Details Size 36"w X 16"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 75" Width X 17. 75" Height Weather and Pest Proof These louvers are especially designed to prevent water from entering your home, and with a built in back 1 2" mesh they also protect you from annoying rodents like mice, rats, birds, and squirrels High Quality Aluminum The premium durable aluminum will never rust and it will never